Slider

../_images/slider-preview.png

Widget description

The slider adds a draggable “slider” widget for selecting the value of something within a range.

A slider can be horizontal or vertical. It can contain an Icon and has a primary label as well as a units label (that is formatted with floating point values and thus accepts a printf-style format string, like "%1.2f units". There is also an indicator string that may be somewhere else (like on the slider itself) that also accepts a format string like units. Label, Icon Unit and Indicator strings/objects are optional.

A slider may be inverted which means values invert, with high vales being on the left or top and low values on the right or bottom (as opposed to normally being low on the left or top and high on the bottom and right).

The slider should have its minimum and maximum values set by the application with Slider.min_max and value should also be set by the application before use with Slider.value. The span of the slider is its length (horizontally or vertically). This will be scaled by the object or applications scaling factor. At any point code can query the slider for its value with Slider.value.

Emitted signals

  • changed - Whenever the slider value is changed by the user.

  • slider,drag,start - dragging the slider indicator around has started.

  • slider,drag,stop - dragging the slider indicator around has stopped.

  • delay,changed - A short time after the value is changed by the user. This will be called only when the user stops dragging for a very short period or when they release their finger/mouse, so it avoids possibly expensive reactions to the value change.

Layout content parts

  • icon - An icon of the slider

  • end - A end part content of the slider

Layout text parts

  • default - Label of the slider

Inheritance diagram